Question

what gas goes into the plant before photosynthesis? carbon monoxide oxygen carbon dioxide

Explanation:

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to produce glucose and oxygen. Carbon dioxide is taken in by the plant from the atmosphere through small openings called stomata. Carbon monoxide is a toxic gas and not involved in photosynthesis. Oxygen is a by - product of photosynthesis, not a reactant that goes into the plant before the process.

Answer:

Carbon Dioxide